> For the complete documentation index, see [llms.txt](https://docs.sevenpens.com/drawtab/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sevenpens.com/drawtab/troubleshoot/tsg-pen-display-does-not-support-video-signal-format.md).

# TSG: Pen display does not support video signal format

## Overview

This condition arises when your pen display is receiving a video signal from your computer, but the signal format is incorrect.

## What you may see

* A message that says something like "No support"
* Colorful static
* A partial view of your computer desktop
* A buzzing sound

Examples of what you might see:

<figure><img src="https://1457921496-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNde0PQIvNcFZNVxuTO0G%2Fuploads%2FvrJqotDGyvVsn3OTyEHt%2Funsupported-video-format%20(Large).jpeg?alt=media&amp;token=05d767d0-7fac-4b6f-94f1-a9d7ded4a1f4" alt=""><figcaption></figcaption></figure>

<figure><img src="https://1457921496-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNde0PQIvNcFZNVxuTO0G%2Fuploads%2F9nbEGGJ6wJHMbgGGuf7m%2Fno-support-message.jpeg?alt=media&amp;token=25c9f9d1-ff5d-44f8-b3bf-d8ab534f2561" alt=""><figcaption></figcaption></figure>

## What it means

The pen display is having trouble handling the specific signal and its settings.

## Some things to try

* Test with a different refresh rate
* Test with a lower resolution
* Test with a different video port on your computer (a different HDMI port, DisplayPort, etc.)
* Test with a different HDMI source (Xbox, camera, laptop, etc.)
* Test with a different HDMI cable

## Links

[**r/XPpen - "No Support" but screen stays on and makes loud buzzing sound.**](https://www.reddit.com/r/XPpen/comments/1v27xsa/no_support_but_screen_stays_on_and_makes_loud/) 2026-07-20